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2025-09-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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这篇文章主要介绍"css3+html5怎么运用javascript做一个简易画板",在日常操作中,相信很多人在css3+html5怎么运用javascript做一个简易画板问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答"css3+html5怎么运用javascript做一个简易画板"的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
html:
颜色版:
笔触:
css:
*{ margin:0; padding:0;}
body{ background:#000;}
canvas{ background:#fff; float:left;}
span{ color:#fff; font-size:80px;}
#ul1{width:100px;height:600px; float:left; background:#ccc;}
_javascript:
_window.onload=function(){
var oC=document.getElementById('c1');
var oColor=document.getElementById('color');
var oNum=document.getElementById('num');
var gd=oC.getContext('2d');//画笔
oNum.onchange=function(){
gd.lineWidth = oNum.value;
strokeFn();
};
oColor.onchange=function(){
gd.strokeStyle = oColor.value;
strokeFn();
};
strokeFn();
function strokeFn(){
gd.beginPath();
oC.onmousedown=function(ev){
gd.moveTo(ev.clientX,ev.clientY);
oC.onmousemove=function(ev){
gd.lineTo(ev.clientX,ev.clientY);
gd.stroke();
};
oC.onmouseup=function(){
oC.onmousemove=oC.onmouseup=null;
};
return false;
};
}
};
到此,关于"css3+html5怎么运用javascript做一个简易画板"的学习就结束了,希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习,快去试试吧!若想继续学习更多相关知识,请继续关注网站,小编会继续努力为大家带来更多实用的文章!
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